日本JaICA 代理Hexanoyl-Lysine adduct(HEL) ELISA Kit

Suitable for assessment of oxidative stress using urine, serum and cultured cells. For research use only.
已酰-赖氨酸（HEL）ELISA试剂盒，适用于尿液，血清和细胞培养样品氧化应激的评估。
仅供研究使用。
什么是己酰-赖氨酸？

Biomarker for early stage of lipid oxidation
Oxidative damage of lipids caused by reactive oxygen species (ROS) play an important role in some diseases, lesion of cell functions and aging. Aldehydes such as malondi-aldehyde (MDA) and 4-hydroxy-2-nonenal (4-HNE) have been reported as one of the advanced lipid peroxidation products. But recently in the earlier stage of lipid peroxidation, 13-hydroperoxyoctadecanoic acid (13-HPODE) is found to be covalently bound to proteins1). Hexanoyl-Lysine adduct (HEL) is a novel lipid hydroperoxide-modified lysine residues. HEL is formed by oxidative modification by oxidized omega-6 fatty acids such as linoleic acid or arachidonic acid. HEL may be a useful biomarker for initial stage of lipid peroxidation.Monoclonal antibodies and ELISA kit have been developped, and HEL can be detected in oxidatively modified LDL, in human atherosclerotic lesions, human urine and serum. It is also reported that HEL is formed in rat muscle during exercise, and the formation is prohibited by antioxidants such as flavonoids.
由活性氧（ROS）引起的脂质氧化损伤在一些疾病、细胞功能损害和衰老中起重要作用。醛类如丙二醛（MDA）和4-羟基-2-壬烯醛（4-HNE）已被报道为先进的脂质过氧化产物之一。但最近在脂质过氧化的早期阶段，发现13-氢过氧十八烷酸（13-HPODE）与蛋白质共价结合。己酰-赖氨酸加合物（HEL）是一种新的脂质氢过氧化物修饰的赖氨酸残基。HEL是通过氧化的omega-6脂肪酸（例如亚油酸或花生四烯酸）的氧化修饰形成。HEL可能是脂质过氧化初始阶段有用的生物标志物。现在我们已经开发了HEL单克隆抗体和ELISA试剂盒，并且可以在氧化修饰的低密度脂蛋白（LDL）、人动脉粥样硬化病变、人尿液和血清中检测HEL。另据报道，大鼠肌肉在运动期间形成HEL，并且通过抗氧化剂（如类黄酮）是禁止形成的。
己酰-赖氨酸（HEL）ELISA试剂盒

JaICA have developed HEL ELISA kit in collaboration with Dr. Toshihiko Osawa (Nagoya University) and Dr. Yoji Kato (Univerisity of Hyogo). This ELISA kit can be applied to urine, serum and cultured cells form human and animal.
JaICA公司与Toshihiko Osawa博士（名古屋大学）和Yoji Kato博士（兵库大学）合作开发了Hexanoyl-Lys（HEL）ELISA试剂盒。
该ELISA试剂盒可应用于人和动物的尿液、血清和细胞培养。

技术参数
检测原理：竞争法ELISA (检测: 450 nm处)；
特异性：特异于N-epsilon-己酰-赖氨酸加合物；
测定范围：2 – 700 nmol/L；
反应速度：过夜+2小时；
规格：96孔(54 samples in single assay)；
应用：人和动物的尿液、血清和细胞培养物；
储存：2-8℃（避免冷冻）；
保质期：2年。
Content of this kit

试剂盒组成：
HEL-包被微孔板: 1 块板(96孔)
一抗 (即用型): 1 瓶
二抗: 1 瓶
二抗缓冲液: 1 瓶
底物溶液 (TMBZ溶液): 1 瓶
底物缓冲液: 1 瓶
洗涤液 (5X): 1 瓶
终止液: 1 瓶
标准液 (6 标准): 各1 瓶
封板膜: 2 片

参考文献：
1)
Yoji Kato, Yoko Mori, Yuko Makino, Yasujiro Morimitsu, Sadayuki Hiroi, Toshitsugu Ishikawa, Toshihiko Osawa, Formation of N epsilon-(hexanonyl) lysine in protein exposed to lipid hydroperoxide. J Biol Chem 274(29), p20406-20414 (1999)
Identification of HEL, which is lysine adduct of 13-HPODE.
2)
Yoji Kato, Toshihiko Osawa: Detection of lipid hydroperoxide-derived protein modification with polyclonal antibodies. Methods in Molecular Biology, vol. 186, Oxidative stress biomarkers and antioxidant protocols, D Armstrong, Ed., Human Press Inc., NJ, USA, p37-44
Immunohistochemical detection of hexanoyl-lysine adduct.
3)
Kato Y, Miyake Y, Yamamoto K, Shimomura Y, Ochi H, Mori Y, Osawa T, Preparation of a monoclonal antibody to N(epsilon)-(Hexanonyl)lysine: application to the evaluation of protective effects of flavonoid supplementation against exercise-induced oxidative stress in rat skeletal muscle. Biochem Biophys Res Commun 274(2),p389-393(2000)
Development and characterization of anti HEL monoclonal antibody.
4)
Ryo K, Yamada H, Nakagawa Y, Tai Y, Obara K, Inoue H, Mishima K, Saito I, Possible involvement of oxidative stress in salivary gland of patients with Sjogren’s syndrome. Pathobiology 73(5), p252-260 (2006)
HEL can be detected in saliva samples from patients with Sjogren’s syndrome.
5)
Suzuki T, Kazui T, Yamamoto S, Washiyama N, Ohkura K, Ohishi K, Bashar AH, Yamashita K, Terada H, Suzuki K, Akuzawa S, Fujie M, Effect of prophylactically administered edaravone during antegrade cerebral perfusion in a canine model of old cerebral infarction. J Thorac Cardiovasc Surg 133(3),p710-716 (2007)
Application to canine serum samples.
6)
Shimizu K, Ogawa F, Akiyama Y, Muroi E, Yoshizaki A, Iwata Y, Komura K, Bae S, Sato S, Increased Serum Levels of N(epsilon)-(hexanoyl)lysine, A New Marker of Oxidative Stress, in Systemic Sclerosis. J Rheumatol. 2008 Sep 1.
Serum HEL concentration from systemic sclerosis is higher than that from healthy subjects.
7)
Tamura H, Takasaki A, Miwa I, Taniguchi K, Maekawa R, Asada H, Taketani T, Matsuoka A, Yamagata Y, Shimamura K, Morioka H, Ishikawa H, Reiter RJ, Sugino N, Oxidative stress impairs oocyte quality and melatonin protects oocytes from free radical damage and improves fertilization rate. J Pineal Res 44(3),p280-287(2008)
Intrafollicular concentration of HEL was significantly reduced by these antioxidant treatment.
8)
Sakamoto Y, Ishikawa T, Kondo Y, Yamaguchi K, Fujisawa M, The assessment of oxidative stress in infertile patients with varicocele. BJU Int 101(12), p1547-1552 (2008)
Azoospermic and oligospermic patients had a significantly higher HEL concentration in seminal plasma.
9)
Kageyama Y, Takahashi M, Nagafusa T, Torikai E, Nagano A, Etanercept reduces the oxidative stress marker levels in patients with rheumatoid arthritis. Rheumatol Int 28(3),pp245-251(2008)
Urinary HEL level was reduced at 3 and 6 months after the initial treatment with etanercept.
10)
Rummenie VT, Matsumoto Y, Dogru M, Wang Y, Hu Y, Ward SK, Igarashi A, Wakamatsu T, Ibrahim O, Goto E, Luyten G, Inoue H, Saito I, Shimazaki J, Tsubota K, Tear cytokine and ocular surface alterations following brief passive cigarette smoke exposure. Cytokine 43(2),p200-208(2008)
HEL concentration in tear was increased by brief passive exposure to cigarette smoke.
11)
K Sakai, S Kino, A Masuda, M Takeuchi, T Ochi, J Osredkar, B Rejc, K Gersak, N Ramarathnam, Y Kato;
Determination of HEL (Hexanoyl-Lysine Adduct): A Novel Biomarker for Omega-6 PUFA Oxidation.
Lipid Hydroperoxide-Derived Modification of Biomolecules: Subcellular Biochemistry 77,p61-72(2014)
An original paper for HEL ELISA development.

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日本JaICA试剂盒产品目录
日本老化制御研究所 Jaica代理
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日本Japan Institute for the Control of Aging (JaICA)

日本老化制御研究所 Jaica代理
上海金畔生物作为日本 JaICA 老化中国代理商，欢迎新老客户访问日本 JaICA 老化官网或者咨询我们获取更多日本 JaICA 老化产品线价格说明书等信息。

日本 JaICA代理 Anti Di Tyrosine (DT) 单抗
日本老化制御研究所自成立以来就对抗衰老进行研究，它是在有助于健康促进的理念下创建的。结果，此研究所在开发DNA氧化损伤测试试剂盒方面取得了很大的成功，并在该领域处于了领先地位。
本研究所现在销售许多氧化应激相关产品，这些产品可应用于医学，药学，生化学，食品科学等。它还利用其独特的技术开展检测服务。随着社会老龄化的发展，预防医学与抗衰老引起了越来越多的关注，在这些领域中，我们研究所将会通过开发和提供研究产品来助于营造一个健康，长寿的社会。
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特性：
高专一性、高灵敏性；
不与RNA损伤产生交叉反应；
易于操作、简单快速；
无需昂贵的设备和样品预处理。
上海金畔生物作为日本 JaICA 老化中国代理商，欢迎新老客户访问日本 JaICA 老化官网或者咨询我们获取更多日本 JaICA 老化产品线价格说明书等信息。
日本老化制御研究所 Jaica代理
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产品名称： Anti Di Tyrosine (DT) 单抗
英文名称： Anti Di Tyrosine (DT) monoclonal antibody
产品货号： MDT-020P
产品规格： 20ug
产品产地： 日本
产品商标： JaICA
 

日本JaICA Test kit for Potential Anti Oxidant (PAO)
日本老化制御研究所 Jaica代理
上海金畔生物作为日本 JaICA 老化中国代理商，欢迎新老客户访问日本 JaICA 老化官网或者咨询我们获取更多日本 JaICA 老化产品线价格说明书等信息。
Suitable for detection of total antioxidant capacity in serum and food extracts. For research use only.
Antioxidant assay:

Oxidative stress plays on important role in various diseases and aging. The control of oxidative stress is expected to be useful to prevent diseases and aging.Oxidative stress is caused by the imbalance between reactive oxygen species (ROS) and antioxidant defense system. For accurate assessment of oxidative stress, measurement of ROS, oxidative damage and antioxidant activity may be essential. Recently, antioxidants as functional foods which scavenge ROS attract a great deal of attention.
Principle of this assay:

In the PAO assay kit, an easy and convenient method to measure antioxidant capacity is provided. Utilizing the reduction of cupric ion (Cu++ to Cu+), antioxidant capacity of samples can be detected in 5 minutes. Samples are mixed with Cu++ Solution. Cu++ are reduced by antioxidants to form Cu+. Reduced Cu+ react with Chromatic Solution (Bathocuproine) , and can be detected by absorbance at wavelength 480 to 490 nm. Antioxidant capacity can be calculated from the Cu+ formed. PAO can detect not only hydrophilic antioxidants such as Vitamin C, glutathione, but also can detect hydrophobic antioxidants such as Vitamin E. Applicable for assessment of total antioxidants of serum, foods and beverage samples.
Specifications:

 
Content of this kit: 试剂盒组成

Assay procedure:

References

日本JaICA Test kit for Potential Anti Oxidant (PAO)   说明书  技术资料